#divMessage {
  width: 750px;
  height: 550px;
  margin: 5px;
  background-image: url(https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1533792134030&di=14e6b1be8d569d7dcb570ed21bbd218d&imgtype=0&src=http%3A%2F%2Ffb.topitme.com%2Fb%2F28%2F64%2F1129884950a4e6428bo.jpg);
  background-position: -150px 0px;
  float: left;
  color: black;
  font-size: 18px;
  font-family: 新宋体;
}

#divOperation {
  width: 400px;
  height: 450px;
  float: right;
}

.green {
  color: green;
}

.red {
  color: red;
}

img {
  width: 100px;
  height: 100px;
}

span {
  font-size: 24px;
  font-family: 华文琥珀;
}

#showAllUserName {
  width: 150px;
  height: 550px;
  background-image: url(https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1533792134030&di=14e6b1be8d569d7dcb570ed21bbd218d&imgtype=0&src=http%3A%2F%2Ffb.topitme.com%2Fb%2F28%2F64%2F1129884950a4e6428bo.jpg);
  float: left;
  font-size: 18px;
  font-family: 新宋体;
  margin: 5px;

}

input[type=button] {
  width: 80px;
  height: 30px;
  margin: 5px;
}
